December weather forecast and climate
Mount Lemmon, AZ

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A birds' eye view of Mount Lemmon Ski Valley from atop the Mount Lemmon, Arizona

What is the temperature in December in Mount Lemmon?

In December, the average high-temperature is 50.5°F (10.3°C), and the average low-temperature is 24.3°F (-4.3°C).

How much does it rain in Mount Lemmon in December?

In Mount Lemmon, Arizona, in December, it is raining for 5 days, with typically 2.6" (66mm) of accumulated precipitation.

How much does it snow in Mount Lemmon in December?

During December, Mount Lemmon regularly aggregates up to 11" (279.4mm) of snow.
Average temperature in December - Mount Lemmon, AZ
  • Average high temperature in December: 50.6°F

The warmest month (with the highest average high temperature) is July (76.5°F).
The month with the lowest average high temperature is February (48.3°F).

  • Average low temperature in December: 24.3°F

Months with the highest average low temperature are July and August (49.8°F).
The coldest month (with the lowest average low temperature) is February (21.8°F).

Average rainfall in December - Mount Lemmon, AZ
  • Average rainfall in December: 2.6"

The wettest month (with the highest rainfall) is August (7").
The driest month (with the lowest rainfall) is May (0.3").

Average rainfall days in December - Mount Lemmon, AZ
  • Average rainfall days in December: 5 days

The month with the highest number of rainy days is August (11 days).
Months with the lowest number of rainy days are May and June (2 days).

Average snowfall in December - Mount Lemmon, AZ
  • Average snowfall in December: 11"

The month with the highest snowfall is February (20.4").
Months with the lowest snowfall are May, June, July, August and September (0").

Average daylight in December / Average sunshine in December - Mount Lemmon, AZ
  • Average daylight in December: 10.1h

The month with the longest days is June (Average daylight: 14.3h).
The month with shortest days is December (Average daylight: 10.1h).

  • Average sunshine in December: 7.8h

The month with most sunshine is June (Average sunshine: 12.4h).
Months with least sunshine are January and December (Average sunshine: 7.8).

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